Learning overview
- Estimated time
- 4 minutes
- Difficulty
- Beginner
- Prerequisites
- No prior experience required
- Learning outcome
- Explain c using a clear mental model · Apply c in practical C work
- Last updated
- July 18, 2026
Definition of C
C is a high-level programming language that gives beginners a clear view of variables, memory, and how programs compile into executables.
Beginners meet C through main, printf, and simple types. Professionals use it for operating systems, drivers, and performance-sensitive tools because it stays close to the machine.
Tiny C example
This program prints a message when main runs.
#include <stdio.h>
int main(void) {
printf("Hello from C\n");
return 0;
}Output
Hello from C
What to remember
C programs usually start in main. The compiler turns your source into an executable the computer can run.
Frequently asked questions
Is C the same as C++?
No. C++ builds on C ideas and adds more features such as classes. Beginners can learn C first for strong foundations.
Is C free to learn?
Yes. You can install a free compiler and practice with free tools, including Avora Learn lessons and playgrounds.
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